2.Connect the black wire (-) to the negative (-) side of the battery first.

3.Connect the red wire (+) to the positive (+) side of the battery next.

4.Connect the ECU power cable to the ECU last.

To connect the data cable to the GHC 10, align the notches on the cable plug and on the back of the GHC 10. Insert the cable into the connector, and turn the locking ring clockwise until it stops.

NOTE: After the ECU and the GHC 10 are connected to power, the GHP 10 autopilot system and the NMEA 2000 network can be powered on.

Bleeding the Hydraulic Steering System

Air must be purged completely from all the hydraulic lines, the helms, the cylinders, the pump, and the Shadow Drive for the system to function. If the hydraulic system is not bled, then the GHP 10 autopilot system will not work correctly. Follow the instructions provided by the manufacturer of your steering system to properly bleed the hydraulic system on your boat. Treat the pump as the lowest helm when bleeding the system.

Notes:

•Disable the Shadow Drive from the GHC 10 to make the bleeding process easier. On the GHC 10, select Menu > Setup >

Autopilot Configuration > Hydraulic Setup > Shadow Drive Enable. Change the Shadow Drive Enable setting to Disable.

•Remember to enable the Shadow Drive after the bleeding process is complete.

•To completely bleed the hydraulic system, it may be necessary to drive the autopilot pump in both directions to remove any air trapped within the pump. You can do this during the Verify Steering Direction portion of the Dockside Wizard (see page 35). Drive the rudder to each stop in each direction, and then perform any additional bleeding that may be necessary.

notice

Check for leaks at every hydraulic fitting, both after the bleeding process is complete and after the sea trial is complete.

Bleeding the Hydraulic System Through the Compact 2.1 L Pump

The compact 2.1 L pump has a bypass valve to aid in the hydraulic-system bleeding process. In addition to the general instructions in the following section, follow the standard bleeding recommendations provided by the manufacturer of your helm.

NOTE: Neither the 1.2/2.0 L pump nor the legacy 2.1 L pump has this bypass valve. These steps only apply to the compact 2.1 L

pump.

General hydraulic bleeding procedures:

1.Ensure the helm reservoir is full of hydraulic fluid. Add fluid if necessary.

2.Manually steer the helm to both cylinder stops.

3.Manually steer the helm fully to port to the stop.

4.Open a bypass valve at the cylinder ports.

5.Turn the helm slowly to port for 3 minutes.

6.Close the cylinder bypass valve.

7.Check the helm reservoir level, and add fluid if necessary. Continue to perform steps 2 through 7 until the helm reservoir level remains full.

8.Open the bypass valve on the manifold of the compact 2.1 L pump.

9.Push and hold the soft key on the GHC 10 for 10 seconds, and watch for steering movement. If there is no movement,

push the soft key.

10.Continue to hold the soft key that produces steering movement and steer fully to the stop. 11.Steer the helm to both cylinder stops using the GHC 10.

12.Close the bypass valve on the manifold of the compact 2.1 L pump.

Notice

Ensure that the built-in bypass valve on the pump manifold is fully closed during normal operation to avoid possible autopilot performance degradation.

13.Check the helm reservoir level, and add fluid if necessary. Perform steps 2 through 7 until the helm reservoir level remains full.

34

GHP 10 Marine Autopilot System Installation Instructions